Lucas Bustamante / Brush footed butterfly (Lycorea sp.) caterpillar with parasitic wasp cocoons on silk threads, Yasuni National Park, Orellana, Ecuador.

Piotr Naskrecki / Leafcutter Ant (Atta cephalotes) worker on leaf protecting larger workers carrying leaf from parasitoid flies, Costa Rica

Wild Wonders of Europe / Ziegler / Parasitoid wasp (Ichneumonidae) carrying a large paralysed caterpillar to its nesting hole, The Peloponnese, Greece, May 2009

MYN / Joao P. Burini / Parasitoid wasp (Ichneumonidae) from urban environment, Sao Lourenço, Minas Gerais, Brazil. Meetyourneighbours.net project.

MYN / Joao P. Burini / Parasitoid wasp (Ichneumonidae) Atlantic forest , Itatiaia National Park, Brazil. Meetyourneighbours.net project.

Nick Upton / Parasitoid wasp (Leucospis gigas) feeding on Sea holly flowers (Eryngium maritimum) on a beach, Sardinia, Italy, June.

Konrad Wothe / Fly (Gymnosoma rotundatum) Bavaria, Germany. June.

Nick Upton / Basket cocoon parasitoid (Meteorus sp.) cocoon hanging from a grass stem in boggy heathland, Studland, Dorset, UK, July.

Philippe Clement / Parasite fly / tachinid fly (Tachina fera) feeding on nectar from Hogweed (Heracleum sphondylium) in summer, France. August.

Joao Burini / Parasitoid wasp (possibly Eucharitidae) with iridescent wings display, Sao Paulo, Brazil. South-east Atlantic forest.

Joao Burini / Parasitoid wasp (possibly Eucharitidae) with iridescent wings, Sao Paulo, Brazil. South-east Atlantic forest.

Bernard Castelein / Fly (Eriothrix rufomaculata), KLein Schietveld, Brasschaat, Belgium. June